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Wound analgesia slow-release system

A wound and bayonet technology, applied in the field of wound analgesic sustained release system, can solve the problems of wasting anesthetics, unfavorable suturing and healing of surgical incisions, etc.

Inactive Publication Date: 2020-06-19
SHANGHAI CHANGHAI HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, this method cannot be directly applied to local analgesia of wounds for the following reasons: (1) Anesthetics are generally administered by injection or continuous pumping, and instillation of local anesthetics has almost no application, and is only applicable when it is rarely used. For surgical incision pain relief, field trauma or war wounds obviously cannot be used for pain relief in this way; (2) The setting of hemostatic gauze not only makes the contact between the anesthetic and the wound an extra layer of barrier, but also easily leads to waste of anesthetic; (3) The drip tube is fixedly connected with the infusion set, so that the drip tube can only pass through the surgical incision, which is not conducive to the suturing and healing of the surgical incision

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0045] Use example 1: Surgical incision suture use

[0046] After the operation is finished with satisfactory hemostasis and the sterile debridement of the wound is completed, the permeable tampon gelatin sponge and the correspondingly connected catheter tampon mounting end 21 are directly inserted into the surgical incision before suturing the surgical wound. After the packing position is satisfactory, the puncture needle 5 passing through the catheter puncture needle end 22 directly punctures from the tissue in the surgical wound to the normal tissue near the incision and passes out from the healthy skin near the incision. Then cut off the puncture needle and part of the catheter to a suitable length, and the catheter is installed on the catheter bayonet 33 of the three-way valve 3 ( Figure 5 ), and inject the local anesthetic through the syringe bayonet 34, observe that the gelatin sponge in the wound is satisified after absorbing the local anesthetic, and can evenly seep ...

example 2

[0048] Use case 2: Use at the scene of war wounds or trauma

[0049] At the scene of war wounds, after simple hemostasis of the wound surface, the gelatin sponge and the catheter packing block installation end 21 are directly inserted into the wound opening, and the catheter is directly passed through the wound without piercing healthy skin and tissue (to prevent infection), and the catheter is placed externally On the outside of the wound, depending on the severity of the injury, simple sutures or simple tape closure can be used. Cut off the puncture needle 5, and the catheter is installed on the catheter connection end 42 of the free catheter bayonet 4 ( Figure 6 ), and inject the amount of local anesthetic drug through the injection port 43 to saturate the gelatin sponge in the wound and evenly seep out to the contacted wound surface to relieve pain.

[0050] Gelatin sponge also has hemostasis, and local anesthetics have the function of inhibiting bacterial infection. Du...

example 3

[0051] Use Case 3: Non-Analgesic Use

[0052] When clinicians wish to inject specific liquids (such as hemostasis, growth factors, or other specific liquids for wound healing under sutures) under the sutured wound without opening the wound to facilitate wound recovery under the sutured skin, catheters can also be used The gelatin sponge injected into the sutured wound will seep out evenly into the wound tissue.

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Abstract

The invention provides a wound analgesia slow-release system. The wound analgesia slow-release system comprises a permeable packing block, a catheter, a three-way valve and a free catheter bayonet, wherein the permeable packing block is packed into a wound and can be degraded and absorbed by an organism; the catheter is provided with a packing block mounting end mounted in the permeable packing block and a puncture needle end provided with a puncture needle, and a plurality of side holes are formed in the packing block mounting end; three bayonet ports are formed in the three-way valve, the three bayonet ports are provided with a catheter bayonet, an injector bayonet and a drip tube bayonet respectively, and the outer diameter of the catheter bayonet is designed to be gradually increased from the catheter end to the three-way valve end; the free catheter bayonet comprises a middle connecting plate with a through hole, and a catheter connecting end and an injection interface end which are respectively arranged at two ends of the through hole and communicate with each other. According to the wound analgesia slow-release system provided by the invention, local anesthetic can continuously and evenly permeate into nerve endings inside the wound, wound pain after trauma and an operation is solved, and a painless rehabilitation environment is provided for a patient.

Description

technical field [0001] The invention belongs to the technical field of analgesic medical care equipment, and in particular relates to a wound analgesic slow-release system used for local analgesia of incision after trauma or operation. Background technique [0002] Currently, pain from accidental trauma and surgical incisions remains a problem. If the incision pain after trauma or surgery is not actively treated, the acute pain can last for several weeks to several months under normal circumstances, and then it may develop into chronic pain. On the one hand, persistent pain affects the recovery confidence of the wounded, and directly affects the combat effectiveness of comrades on the battlefield; on the other hand, if the pain is not actively dealt with, once the pain is transformed into chronic pain and forms a central memory to accompany the patient, he will need treatment for life , And even lead to subsequent abuse of painkillers, leading to problems such as addiction ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M19/00A61M25/02A61M5/14A61M5/142A61M5/145A61B17/34
CPCA61M19/00A61M25/02A61M5/14A61M5/142A61M5/145A61B17/34A61M2025/0253
Inventor 马宇
Owner SHANGHAI CHANGHAI HOSPITAL
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